JPH03110162U

JPH03110162U -

Info

Publication number: JPH03110162U
Application number: JP1950590U
Authority: JP
Priority date: 1990-02-28
Filing date: 1990-02-28
Publication date: 1991-11-12

Description

[Brief explanation of the drawing]

第１図と第２図は本考案の異なる実施例の一部
縦断したシステム図、第３図はフローチヤートで
ある。２……チヨークバルブ、４……チヨークブレー
カ、６……ブレーカダイアフラム装置、７……ブ
レーカダイアフラム、１４……ダイアフラム装置
、１５……スプリング、１６……ダイアフラム、
１９……後室、２０……負圧通路、２１……切換
弁、２２……負圧スイツチ、２３……高度スイツ
チ、２４，２４′……制御手段。 1 and 2 are partially longitudinal system diagrams of different embodiments of the present invention, and FIG. 3 is a flowchart. 2... Chiyoke valve, 4... Chiyoke breaker, 6... Breaker diaphragm device, 7... Breaker diaphragm, 14... Diaphragm device, 15... Spring, 16... Diaphragm,
19... Rear chamber, 20... Negative pressure passage, 21... Selector valve, 22... Negative pressure switch, 23... Altitude switch, 24, 24'... Control means.

Claims

[Scope of utility model registration request]

In a carburetor equipped with a choke breaker 4 that increases the opening degree of the choke valve 2 by a breaker diaphragm device 6 operated by the engine's intake negative pressure, the breaker diaphragm device 6
A diaphragm device 14 includes a diaphragm 16 that limits the amount of movement of the breaker diaphragm 7 in the direction of opening the valve, and a spring 15 that biases the diaphragm 16 toward the limiting position. A negative pressure passage 20 that guides pressure, a switching valve 21 inserted into this negative pressure passage to open and close this passage, a negative pressure switch 22 that detects large intake negative pressure when the vehicle decelerates, and detects low air pressure below a certain level. control means 24, 2 which open the negative pressure passage 20 by operating the switching valve 21 in response to signals from both the negative pressure switch 22 and the altitude switch 23;
A mixture control device for a carburetor equipped with 4'.